Rockville RVP15W4 1000 Watt 15" Raw DJ Subwoofer 4 Ohm Sub Woofer 51OZ Magnet Rockville RVP15W4 15" 1000 Watt raw replacement subwoofer Power RMS: 500 watts Peak power: 1000 watts Fiber reinforced Ultra stiff paper composite cone Paper composite dust cap